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Transparent ECM motor unit bearing housing with steel frame and stud mounts

Morrill

Morrill 5210A Unit Bearing Motor Non-Standard HVAC Control

SKU CH-74N6-BFEV2

Single-phase ECM refrigeration motor delivers 52 W at 550 or 800 RPM on 208–230 V AC

  • ColorTransparent
  • ECM design delivers efficient variable-speed operation
  • Two-speed motor provides 550 and 800 RPM flexibility
  • 1/15 HP output suits compact refrigeration applications
  • Totally enclosed air-over enclosure protects internal components
  • Auto thermal protection prevents overheating damage

Direct Replacement Motor

The Morrill 5210A is a single-phase ECM unit bearing motor designed for HVAC controls where a non-standard frame is required. It delivers 1/15 HP at 52 W output and runs continuously at up to 25 degrees C ambient. The motor operates on 208-230V AC at 60/50 Hz with a full-load draw of .63 A and built-in auto thermal protection.

Stud Mount Two Speed Operation

A stud mounting pattern secures the steel frame directly to the equipment, while the totally enclosed air-over enclosure protects internal components. Two selectable speeds at 550 and 800 RPM give flexibility for airflow balancing without an external drive. The motor is usable at 208 V but not at 200 V, and the CCWLE shaft rotation must match the original fan or blower wheel.

Continuous Duty Thermal Protection

Insulation class B and a 1.0 service factor support uninterrupted operation at nameplate load. Auto thermal protection interrupts power if internal temperature exceeds safe limits, then resets automatically when the motor cools. This behaviour suits long running cycles in refrigeration or air-handling units where steady output matters more than brief peak torque.

Highlights

  • ECM design delivers efficient variable-speed operation
  • Two-speed motor provides 550 and 800 RPM flexibility
  • 1/15 HP output suits compact refrigeration applications
  • Totally enclosed air-over enclosure protects internal components
  • Auto thermal protection prevents overheating damage

Specifications

BrandMORRILL
ColorTransparent

Questions about this item

How long can the ECM motor run continuously before thermal protection activates at 25°C ambient?

The motor is rated for continuous duty with automatic thermal protection and Class B insulation, allowing sustained operation within the 25°C maximum ambient temperature limit.

What are the electrical requirements for the 52 W ECM motor running at full load?

The motor operates on 208-230V AC single-phase power at 60/50 Hz, drawing 0.63 A full-load amps with a 1.0 service factor.

What mounting hardware and shaft configuration does the non-standard frame motor need?

The motor uses stud mounting on a steel frame with CCWLE shaft rotation, requiring compatible stud mounts and a driven component matching the rotation direction.

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